clinton remains in the hospital tonight. she's being treated with blood thinners to dissolve a blood clot in her head. ew yorkt brennan is at new york et, what aan hospital. margaret, what are we hearing ?bout her health tonight? >> well, anthony, secretary clinton's spokesperson says formation e information when there is something to update. when clinton was hospitalized on sunday, that same spokesperson said t her that doctors would monitor her for about 48 hours. but e now beyond that window. but doctors tell us that it usually takes more than two days to establish the proper dose of anood thinner and weeks, even months, to thin out the clot. treatments can last up to six months. >> mason: the secretary, margaret, has about three weeks left in office. hsentially, has her term ended n?w, then? he reporter: well, the secretary was expected to step down at the end of the month once the senate confirms her successor. but today, senate staffers told us that, right now, there is no word yet as to when congress will begin those hearings to approve john kerry as the next secretary of state. c